Home / 8,434.97-11,639.30-4,897.47

Finding the Fourth Proportional to 8,434.97, 11,639.30 and 4,897.47

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Solution

The fourth proportional to 8,434.97, 11,639.30 and 4,897.47 is: 6,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.97 : 11,639.30 = 4,897.47 : x
  2. Step 2: Convert to fraction form
    8,434.97/11,639.30 = 4,897.47/x
  3. Step 3: Cross multiply
    8,434.97x = 11,639.30 × 4,897.47
  4. Step 4: Simplify right side
    8,434.97x = 57,003,098.08
  5. Step 5: Solve for x
    x = 57,003,098.08/8,434.97
  6. Step 6: Final answer
    x = 6,757.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.